Love the music! Great variety on the shooting patterns. I would've liked to see possibility of using the mouse for aiming. I was also going to suggest having the part that needs to be shot highlighted, because I had trouble reading the prompts for which part was vulnerable. Then I realized where the text spawned corresponded with which part was vulnerable so that helped a bit.
I think for a bullet hell game like this I'd suggest more responsive movement, instead of the acceleration happening here. But that can be a design decision, it's just what I'm used to from other bullet hale games.
Great game all around, good job!